1. INTRODUCTION

1.1. Type mixtures for separate

The technique of gas absorption used for binary mixtures as multicomponent.

- Binary mixtures.

Considered at this point that a gas is formed by an inert B (the component that is not transferred) and the solute A, while the liquid is formed by another inert C (the solvent) and the solute A. The transfer will take from the gas phase to the liquid phase.

- Multicomponent mixtures.

When multiple components are transferred, the problem is complicated from the point of view of the mathematical model. An additional difficulty lies in the scarcity of data on this system. The difficulty can be overcome in many cases, considering the ideal behaviour. When this hypothesis is not acceptable, must resort to estimation procedures. This separation of components is performed to calculate the number of plates (discontinuous contact) or the height of the filling (continuous contact) necessary. With these data we can calculate recovery the other components.